10 Derwendeg, Pontardawe, Swansea, SA8 4NU
About 10 Derwendeg
10 Derwendeg is a semi-detached house in Pontardawe, Swansea, Swansea (SA8 4NU). It has a recorded floor area of 83 m² (around 893 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (May 2026) returns a B (score 84), comfortably above the UK average. When first surveyed in August 2011 the rating was D, the property has climbed 2 bands since. Between certificates, window efficiency dropped from Good to Average and lighting dropped from Good to Average. This certificate was lodged in the last six months, so the rating reflects current condition.
Energy performance
The EPC has just been inspected, so the rating reflects current condition.
EPC Rating
Certificate validity
Valid until 5 May 2036
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Wall insulation improved
More low energy lighting installed
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Planning history
10 Derwendeg has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
10 Derwendeg has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£138,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Versus other Derwendeg homes
10 Derwendeg outperforms the street on habitable rooms by a wide margin.
EPC Rating
84 (B)
Street avg 81 (C)
Floor Area
83 m²
Street avg 79 m²
CO₂ Emissions
2.0 t/year
Street avg 2.0 t/year
Habitable Rooms
5 rooms
Street avg 4 rooms
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The neighbourhood at a glance
Crime
66/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Cefn Llan Stores — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







